Section 1021(b)(2) of the NDAA affirms the authority of the president under the Authorization for Use of Military Force (AUMF) to detain indefinitely any “person who was a part of or substantially supported al Qaeda, the Taliban, or associated forces that are engaged in hostilities against the United States or its coalition partners, including any person who has committed a belligerent act or has directly supported such hostilities in aid of such enemy forces.” President Barack Obama signed the NDAA into law [JURIST report] on December 31, 2011. Upon signing, he noted [statement], “I want to clarify that my Administration will not authorize the indefinite military detention without trial of American citizens. Indeed, I believe that doing so would break with our most important traditions and values as a Nation.” Both houses of Congress reached an agreement [JURIST report] on the language of the NDAA’s most controversial sections in mid-December.